ICD-10-PCS 2027 procedure code
0SSC04ZReposition Right Knee Joint with Internal Fixation Device, Open Approach
Short description: Reposition Right Knee Joint with Int Fix, Open Approach
Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 0SSC04Z
0SSC04Z is the ICD-10-PCS code for a reposition procedure on the right knee joint using an open approach with internal fixation device. In ICD-10-PCS, reposition means moving to its normal location, or other suitable location, all or a portion of a body part.
In plain terms, this corresponds to open reduction of dislocation of knee, the ICD-9-CM procedure title it maps to (79.86).
For a different body part, codes include 0SS004Z (lumbar vertebral joint), 0SS304Z (lumbosacral joint), 0SS504Z (sacrococcygeal joint), 0SS604Z (coccygeal joint), 0SS704Z (right sacroiliac joint), 0SS804Z (left sacroiliac joint) and 13 more.
The same procedure with a different approach is coded 0SSC34Z (percutaneous), 0SSC44Z (percutaneous endoscopic) and 0SSCX4Z (external).
With a different device, use 0SSC05Z (external fixation device) and 0SSC0ZZ (no device).
It is an operating-room procedure in the MS-DRG logic for DRG 400 (Knee Procedures with Principal Diagnosis of Infection), DRG 488 (Knee Procedures without Principal Diagnosis of Infection with CC/MCC), DRG 489 (Knee Procedures without Principal Diagnosis of Infection without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Knee Procedures with Principal Diagnosis of Infection”, “Knee Procedures without Principal Diagnosis of Infection”, “Other O.R. Procedures for Injuries” and 1 more.
It has been valid since ICD-10-PCS took effect on October 1, 2015.
What each character means
- 1. Section
- 0Medical and Surgical
- 2. Body System
- SLower Joints
- 3. Operation
- SReposition
Moving to its normal location, or other suitable location, all or a portion of a body part
The body part is moved to a new location from an abnormal location, or from a normal location where it is not functioning correctly. The body part may or may not be cut out or off to be moved to the new location
Includes: Reposition of undescended testicle, fracture reduction
- 4. Body Part
- CKnee Joint, Right
- 5. Approach
- 0Open
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure
- 6. Device
- 4Internal Fixation Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 0SS004ZLumbar Vertebral Joint
- 0SS304ZLumbosacral Joint
- 0SS504ZSacrococcygeal Joint
- 0SS604ZCoccygeal Joint
- 0SS704ZSacroiliac Joint, Right
- 0SS804ZSacroiliac Joint, Left
- 0SS904ZHip Joint, Right
- 0SSB04ZHip Joint, Left
- 0SSD04ZKnee Joint, Left
- 0SSF04ZAnkle Joint, Right
- 0SSG04ZAnkle Joint, Left
- 0SSH04ZTarsal Joint, Right
Different approach
Different device
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Knee Procedures with Principal Diagnosis of Infection
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Knee Procedures without Principal Diagnosis of Infection
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
MDC 24 · Multiple Significant Trauma · Other O.R. Procedures for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 79.86Open reduction of dislocation of kneeapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 0SSC04Z
Is 0SSC04Z a valid ICD-10-PCS code for 2027?
- Yes. 0SSC04Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0SSC04Z an O.R. procedure?
- Yes. 0SSC04Z is an O.R. procedure in MS-DRG v44.0.
What DRG does 0SSC04Z group to?
- Depending on the principal diagnosis, 0SSC04Z can group to MS-DRG 400, MS-DRG 488, MS-DRG 489, MS-DRG 907, MS-DRG 908 and MS-DRG 909.
What is the ICD-9 procedure code for 0SSC04Z?
- The CMS GEMs map 0SSC04Z to ICD-9-CM 79.86 (Open reduction of dislocation of knee).